Yuka, who was asked by a friend to take on a delivery part, was a bit fed up with the crowded commuter train, but she boarded the train with anticipation for her new workplace. However, unfortunately, she was molested by a pervert who took advantage of her vulnerable body... As she was repeatedly tormented by the pervert, her unsatisfied body gradually began to accept the persistent caresses. As she repeated such days, Yuka continued to commute, secretly enjoying the pleasure of being groped by perverts in crowded trains. Then one day, a woman approached her...